Showerhead assembly



FIG. 1 is a right side elevational view of a showerhead assembly showingmy new design;

FIG. 2 is a similar right side elevational view of the showerheadassembly, with a part of it shown in partial length for ease ofillustration;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The ornamental design for a showerhead assembly, as shown and described.